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Posted to mapreduce-dev@hadoop.apache.org by "Vinod Kumar Vavilapalli (Created) (JIRA)" <ji...@apache.org> on 2012/01/04 18:16:40 UTC

[jira] [Created] (MAPREDUCE-3616) Thread pool for launching containers in MR AM not expanding as expected

Thread pool for launching containers in MR AM not expanding as expected
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                 Key: MAPREDUCE-3616
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3616
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mr-am, performance
    Affects Versions: 0.23.1
            Reporter: Vinod Kumar Vavilapalli
            Assignee: Vinod Kumar Vavilapalli
             Fix For: 0.23.1


Found this while running some benchmarks on 350 nodes. The thread pool stays at 60 for a long time and only expands to 350 towards the fag end of the job.

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